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Define the Following: Cough Reflex - Biology

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प्रश्न

Define the following:

Cough Reflex

व्याख्या

उत्तर

Cough Reflex: It is a type of reflex whose stimulus is any foreign particle which results from deep inspiration followed by strong expiration that forcefully expels the air through the mouth.

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पाठ 19: Respiratory System - Exercise [पृष्ठ १७६]

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फ्रँक Biology [English] Class 9 ICSE
पाठ 19 Respiratory System
Exercise | Q 9.1 | पृष्ठ १७६

संबंधित प्रश्‍न

Given alongside is a diagrammatic sketch of a kind of part in human lungs.

What do the arrows 5 and 6 indicate?


What are the functions of the following in breathing?

Abdominal muscles


The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured.

The following diagram shows a group of the lung volumes and capacities.

Study the diagram carefully and explain briefly the following : 

Residual volume (RV)


Answer briefly the following:

What is the role of epiglottis during swallowing?


Fill in the blank.

________is present in the red blood cells and helps in the transport of oxygen.


Write true or false for the following statement. Rewrite the false statement correctly.

The trachea branches into two tubes called bronchioles.


Write true or false for the following statement. Rewrite the false statement correctly.

The microscopic air sacs present in the lungs are called bronchi.


Write true or false for the following statement. Rewrite the false statement correctly.

The walls of alveoli are richly supplied with veins.


How is aerobic respiration different from anaerobic respiration?


What are turbinates?


Very short answer question.

Name the organ which prevents the following the entry of food into the trachea while eating.


Carefully study the diagram of the human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and /or characteristic.


Match the following:

1. Human intestine a. Blue blood
2. Crab b. White blood
3. Cockroach c. Digestion of fat
4. Bile d. Tape warm

What are the most important toxic gases in smoke?


List the parts of the respiratory system.


Arrange in the correct sequence

Trachea → Bronchi → Pharynx → Lungs → Larynx → Nasal cavity → Nostrils → Bronchiole → Alveolus


Pick the odd one out from each of the groups given below on the basis of respiratory organs. Give a reason for your answer.

cockroach, grasshopper, snail, ant


Which of the following statements is incorrect regarding respiratory system?


Measure the breathing rate of the members of your family and some of your friends. Investigate:

  1. If the breathing rate of children is different from that of adults.
  2. If the breathing rate of males is different from that of females If there is a difference in any of these cases, try to find the reason.

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